Device for cleaning bobbins



Feb. 6, 1934.

INVENTOR LMKizwww, f,

ATTORNEY WITNESS {Sw/W4;

Feb. s., 1934.

E, A. MCKILLOP 1,945,654

DEVICE FOR CLEANING BOBBINS Original Filed Nov. 5, 1931 2 Sheets-Sheet 2 ATTORNEY Patented Feb. 6, 1934 1,945,554. A Device Fon CLEANING BoBBrNs Edgar Alexander McKillop, Hendersonville, N. C.

Application November 5, 1931, Serial No. 573,273 Renewed October 27, 1933 1 Claim.

This invention relates to a device for cleaning the central passages in bobbins. Machines have been employed known as bobbin strippers in which the bobbins are placed periodically in a predetermined position and lint which collects upon the exterior of the quill or bobbin is blown or brushed off. The clean bobbins are then removed and are ready for use. These machines automatically place the quills in the cleaning position and also remove them periodically from such position. The axial passages of the bobbin, however, are cleaned manually by means of tools or wires which are passed through the central core.

An object of the invention is the provision of a device for automatically cleaning the axial passages of quills or bobbins by forcing compressed air through the passages with the quills being placed in operative position for the axial cleaning and then removed to permit successive quills to be placed in position to receive a blast of compressed air. y

Another object of the invention is the provision of a device for forcing compressed air through the axial passage of a quill or bobbin for removing lint collected therein in which a nozzle is vmoved into snug contact with the smaller end of the quill and in alignment with the axial passage so that when the carrier carrying the nozzle is reciprocated and the nozzle is in contact with the quill a valve will be automatically operated for forcing a blast of compressed air through the nozzle and through the axial passage of the quill.

A further object of the invention is the provision of a device for cleaning the axial passages of the quills or bobbins in which a nozzle is moved into contacting relation with one end of I the quill, the nozzle being carried by a carriage which is periodically reciprocated towards and away from the quill while the quill is held temporarily in a fixed position for the cleaning op eration.

This invention will be best understood from a consideration of the following detailed descrip@ tion, in view of the accompanying drawings forming a part of the specification; nevertheless, it is to be understood that the invention is not confined to the disclosure, being susceptible of such changes and modifications which shall de fine no material departure from the -salient fea' tures of the invention as expressed in the ap-' pended claim.

In the drawings:

55 Figure 1 is a plan view partly in section of al device constructed in accordance with the prin- C ciples of my invention,

Figure 2 is a side elevation of the parts in section,

Figure 3 is a vertical section of the oscillating means for the movable carriage, and

Figure 4 is an enlarged section of the air nozzle.

Referring more particularly tothe drawings, lo designates a 'bracket to which is secured an arm 11 by means of screws l2. This arm is formed integrally with a casing 13 which provides a housing for a rock shaft 111.VV The bracket forms partof an'Utsman bobbin stripper or other similar machine which is adapted to clean'the exterior walls of the quills or bobbins, the lastvnamed device containingmeans for automatically J positioning the quills or bobbins for cleaning purposes but since this stripper forms no partrof the present invention, the same is not shown.

An operating shaft of the stripper indicated 7 at 15 and a coupling sleeve 16 connects the shaft 15 with a shaft 17, set screws 18 being employed for connecting the sleeve 16 to the respective shafts. The shaft 15 is rocked through an angle of approximately 10 to'15fa as is likewise the shaft 17 for a purpose which will be presently explained.

The housing 13 has an upper extension 20 with its opposite ends open to receive bearings 21 and 22 which are secured in place by means of bolts 23.

` A boss 24 is formed on the top of the extension of the casing 13 and is provided with a threaded passage receiving a plug 25. The passage in which the plug 25 is threadedprovideso means for the application of a lubricant to the i working parts within the casing 13.

The shaft 17 is .provided with an enlarged portion 26`having a spiral groos/e 27 which receives a tooth'28 `formed radially on the shaft 14. .95

q A bar 30 passes through an opening in the shaft 14 and is secured in place on said shaft by means Aof a set screw 31. The shaft has an offset portion 32 which is received within a sleeve 33 having ears 34 which are secured to the outer end-100 35 of a slidably mounted carriage 36 by means of bolts 37. The opposite end of the bar 30 is provided with a sleeve 40 to which is connected one end of a coil spring 41. The other end of the coil spring is secured to a rod 42 which in105 turn`is attached to one end of the casing 13. The spring 41 is adapted to maintain the bar 30 in a predetermined position which is substantially' at right angles to the shaft 17.

The bracket 10 ofthe bobbin stripper referred 1-10 device which` arm is provided with a slot 81. `from the outer free end 83 of the arm l8() `and to above is provided with a channel member 45 in which is mounted a housing 46. This housing includes a base member 47 and side walls 48. The side walls of the housing are sheared olf, as shown at 49, at an angle to the vertical and this housing receives the carriage 36.

'I'he carriage consists of a base member 50 having a vertically disposed end member 51 formed integrally with the base member and provided with an opening to receive a pipe 52. A block 53 which is secured to the member 51 is also provided with an opening to receive the pipe 52. A set screw 54 secures the pipe to said block. A support 55 has a foot 56 which is secured to the base member of the carriage 36. This member 55 is provided with an opening which receives the pipe 52 so that the block 53 and members 51 and 55 support the pipe 52 upon the carriage 36.

A nozzle, generally designated b y the numeral 60, is secured to the end of the pipe 52 which projects beyond the member 51. The nozzle consists of Va sleeve 61 threaded at 62 upon the outer end of the pipe 52. This sleeve has a countersunk portion which is threaded as shown at 63 to receive an internal 'sleeve 64. A head 65 is threaded at 66 upon the internal sleeve 64 for securing the head` to the sleeve 61 and likewise to the pipe 52.

The head l65 is provided with a lip portion 67 projecting outwardly from the head 65 at the lower end to receive the reduced end 680i a quill or bobbin 69. This construction permits `the quills to be placed in contact vwith the nozzle so that the axial passage 70 of the quill 69 -will be aligned with an axial passage 71 in a rubber sleeve 72. This sleeve is forced into the sleeve 64 and is provided with a shoulder 73 engaging a complementarily-constructed shoulder formed interiorly of the head 65.

A supporting member for the quill l69 is shown at 75 and this member consists ofsimila'rly constructed members and similarly constructed plates 76 whichhas a lower inner offset portion 77 perforated to receive a bar 78. The bar 78 is received by the side walls of the vchute or channel member 45. The upper end of the plates 76 are spaced apart suiii'ciently to'snugly receive an intermediate portion of Va quill 69.

A second support is shown at A8O"inY the form of an arm extending towards the nozzle 60. This A block'821ises 'is' provided with a vertical passage 84 in alignlment with the central passage 70 of the quill y69 to permit lint, as shown at 85, to pass Vdownwardly after the said lint has been blown from the axial passage of the quill. The outer free ends of the block, as shown at 86, are adapted to engage the outer enlarged end 87 of the quill 69 for aiding in supporting the quill when the smaller end of the quill is in engagement with the nozzle 60.

A rod 90 is secured at 91 to a bracket arm 92 depending from the channel member 45. At the outer end of the arm, as shown at 93, is pivotally mounted one end of a lever 94 which is bent intermediate its ends, as shown at 95, to provide anoffset arm 96. This arm is pivoted at 97, upon Vears 98, depending from a cuff 99. The lever 94 is provided with a seat 100 for a purpose which will be presently explained. n y

VA valve casing, as shown at 101, is provided which is adapted to be in engagement l'with the seat on the lever 94. A spring 102a maintains the valve closed. The casing 101 is in communication with the pipe 52 and with a pipe 103 which is connected with a flexible tubing 104. This tubing is connected with a source of compressed air.

The operation of my device is as follows: The device for cleaning the axial passages of quills or bobbins is used in connection with a stripping machine which is adapted to automatically place the quills or bobbins in a predetermined position for stripping the lint from the exterior walls of the quills vor bobbins and for removing the lint after the cleaning operation has been completed. While these quills or bobbins are being held place for the stripping operation the nozzle 60 has time to move into snug contact with the reduced end of the tapered bobbin or quill 69 by the mechanism shown in Fig. 3 and as the carriage 36 is moved towards the reduced end of the bobbin the lever 94 is actuated so 'that when the rubber sleeve 72 has come into snug engagement with the end of the quill 69, the lever 94 will be tilted suiciently to elevate the stem 102 and thereby open the valve within theV housing 101 so that a blast of compressed air will be forced through the axial passage 70 of the quill 69 and force the lint from the enlarged end 87 as shown at V85 in Fig. 2. The carriage is then moved in the opposite direction, releasing the quill 69 so that the mechanism (not shown) will be permitted to remove the'quill and place another quill in position for the cleaning of the lint from the axial passage of said quill.

It will be seen that since the shaft 17 is rocked' through a small angle by the shaft 15, the spiral groove 27, receiving lthe tooth 28 of the shaft 1'4, will cause the shaft 14 likewise to be rocked, thereby oscillating the rod 30 so that the offset portion 32 of the rod 30 will be moved outwardly and thus move the carriage 36 in the same direction and the nozzle 60 away from the reduced end of the quill 69. As the shaft Y15 is rocked in the opposite direction and likewise the shaft 17, the shaft 14 will be moved in the oppositerdirection, thereby rocking the rod 30 so that the offset portion -32 will move the carriage inwardly to cause the nozzle-60 to engage a successive quill.

The rocking of the lever 94 isagain repeated for opening the valve within the casing 101 to permit a further blast of compressed Aair into the newly positioned quill.

When the carriage 36 is moved in the opposite direction the arm 94 is rocked outwardly, thereby lowering the seat 100, thereby closing thev valve in the casing 101.

A rod is secured to the sidewalls 48 of the housing 46 and in close association with the b'ottom of the carriage 36 so that the'carriage will be maintained in position within its respective housing during the reciprocating movement of the carriage. The rocking of the shaft 30 is through-an arc of approximately 10 to 15 and the movement of the member 52 is not over vesixteenths of an inch, so that whilethe lever 94v rocating the nozzle and for moving said nozzle of the lever being pvotallv| connected to the pipe, the lever having a. projection engageable with the stem, so that when the lever is oscillated in one direction by the reciprocation of the nozzle, the projection will move the valve to open position.

his EDGAR ALEXANDER X MCKILLOP.

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